Cement applying machine



June 9, 1.942. F. AsHwoRrl-l' 2,285,484

CEMENT APPLYING MACHINE -Filed Nov'. 6, 1940 2 Sheefn'sSh'et I A40 42 I I z Z4 se l se 34 t# A m 73 63 O O 4 *.'l

l y "/6/ 4 116 y f 6a L 180 42 2 Fig. 7.37 as 6443 L// 7/ 73 l /N VENTR.

June 9, 1942..

P. Asl-WORTH CEMENT APPLYING MACHINE Filed NOV. 6, 1940 2 Sheets-Sheet 2 Patented June 9, 1942 CEMENT APPLYING MACHINE Fred Ashworth, Wenham, Mass., assignor to United Shoe Machinery Corporation, Flemington, N. J., a corporation of New Jersey Application November 6, 1940, Serial No. 364,518

12 Claims.

This invention relates to a machine for applying cement to parts of moccasins prior to assembly and as illustrated herein relates more specifically to a machine for applying cement to the moccasin toe piece and the vamp preparatory to uniting the same for the stitching operation. The term moccasin as herein employed applies to that type of footwear in which a single piece of material covers the bottom and sides of the foot, the marginal edges of the material being drawn upwardly and inwardly over the sides and top of the forepart of the foot and stitched to a piece which overlies the top of the forepart of the foot, the resulting seam forming an upstanding horseshoe-shaped rib which characterizes moccasin footwear. That portion of the moccasin which covers the bottom and sides of the foot is commonly referred to as the bottom or vamp, and will be referred to as such hereinafter, while the part overlying the top of the foot will be designated as the toe piece.

It is customary to bevel the edges of the vamp and toe piece and then to bend these beveled portions at an angle to the body of the work so that when the vamp and toe piece are united by stitching a pronounced ridge will be formed. Because it is diflicult to hold the narrow faces of the beveled vedges in proper alinement for the stitching operation, it is desirable to apply cement to these faces and adhesively unite the toe piece and vamp prior to the stitching operation. This facilitates the stitching operation and has the'further function of holding the edges together so that there will be no gapping in the finished shoe. A machine for bending the beveled edge of the toe piece and for applying cement thereto is disclosed in my application Serial No. 309,227, filed December 14, 1939. In preparing the vamp or bottom, it is pulled over a last and trimmed to provide a beveledv edge, as disclosed in application Serial No. 240,546, led November 15, 1938, in the name of Ashworth and Baker. The cement is applied to the beveled edge of the aforesaid lasted vamp without removing the last so that the shape of the moccasin will be accurately preserved during the positioning of the toe piece and during the stitching operation. Very little skill is required in applying cement to the beveled edges of the work and, consequently, in order to compete with hand labor, a machine must be provided that will apply cement to either the toe piece or the vamp. This may readily be accomplished by modifying the work support in the machine disclosed in my prior application Serial No. 399,227, since the applying roll emframe I 0, a cement applying roll I2 mounted ployed in that machine is suitable for, either operation. It would be possible to dismount one work support and substitute therefor another each time the character of the work changed, but it is preferable to avoid this. Consequently, it is an object of the present invention to provide an improved cement applying machine having plural work supports, either of which may be shifted quickly and efficiently -into operation in accordance with the character of the work, whereby the machine may be used for applying cement to either moccasin toe pieces or to mcccasin Vamps.

Accordingly, a feature of the present invention resides in the provision in that machine of a carrier having spaced work supporting rolls, one of which is driven, the carrier being movable to carry either one of the work supporting rolls into co-operating position with the applying roll and simultaneously to carry the other work supporting roll out of co-operating position with the applying roll.

The specific construction and operation of the machine will now be described with reference to the accompanying drawings, in which- Fig. 1 is a front elevation of the machine;

Fig. 2 is a fragmentary View, partly in section, of the work support for the moccasin vamp;

Fig. 3 is a horizontal section on the line III- III of Fig. 1, showing the angular relation of the work support for the moccasin toe piece and the Work support for the moccasin vamp;

Fig. 4 is a vertical section taken on the line rv--IV of Fig. 3; and

Fig, 5 is an enlarged fragmentary view of the co-operation between the cement applying roll and the moccasin toe piece work support gripping the flanged portionof a moccasin toe piece.

Referring to Fig. 1,'the machine comprises a thereon supplied with cement from a tray I 4, and a pair of work supports, indicated generally at A and B, mounted below the applying roll on a swingable carrier 16, each work` support being constructed and arranged alternatively to co-operate with the applying roll to hold the Work in contact therewith, the support employed at any given time depending upon the character of the work. f

Except for the applying roll l2 and the supports A and B, the machine is substantially similar to that shown in United States Letters Patent No. 1,851,162, granted `March 29, 1932, on an application filed in the name of J. W. Cosgrove, and, therefore, will not be described in detail except in so far as is necessary to clearly disclose the present invention. As illustrated herein, the frame I8 supports the customary cement tray I4, which is supplied with ce-ment from a chicken-feed type cement container I6, and a plurality of transfer rolls I8, 28 and 22 for transferring a uniform coating of cement from the tray to the surface of the applying roll I2. A doctor roll 24 spreads the cement picked up by the transfer roll I8, and an adjustment (not l0 shown) is provided for changing the position.. of the doctor roll 24 in order to vary the quantity. of cement transferred. The aforesaid rolls are driven in the direction indicatedby the arrows in Fig. l by gearing substantially identical withthat shown in the patented machine mentioned above.

The cement applying roll I2 is mounted on a bracket 25 below the transfer roll 22 .with its peripheral surface in contact therewith. The bracket is bolted to the frame Ill at 25', replacing the pivoted arm which forms a bearing for the shaft of the support roll in the aforementioned patented machine. As illustrated in Fig. 3, the bracket comprises two sleeve-like 25 members 26 and 35 rigidly joined inangular relation by a web 43. The sleeves 26 and 36 provide bearings for a pairv of shafts 28 and 34, the applying roll .I2 being fixed to the end of the shaft 34, The shaft 28 is driven by the aforementioned 30 gearing (not shown) and has xed thereto a gear 3S which meshes with a gear 38 fixed to the shaft 34, thereby driving the latter and, consequently, the applying roll fixed thereto. The axis of the. applying roll I2, as illustrated, is disposed at an angle to the. axis of the transfer roll 22., for a purpose which will appear hereinafter. Conscquently, the contact of the surfaces of the two rolls is substantially a point contact. In spite, of this, however, the cement brought into contact with the applying roll I2 spreads laterally and coats the entire roll. To facilitate a uniform spread of cement, the surface of the roll I2 is provided with grooves 32 widthwise thereof.

The work supports A and B are disposed at an angle with respect to each other in a plane below the applying roll I2 and are movable as a unit about a vertical spindle 13 sothat, as onesupport is moved into co-operating position beneath` the applying roll I2, the other is simultaneously moved out of position. To this end, the supports A and B are mounted on a carrier 16 (Fig.

3) which is shaped like a clevis and is supported for pivotal movement upon the ends of theV74 spindle 18, the latter being xed by means of a setscrew 11 in a socket 19 formed at the free end of an arm 88 (Fig. 4.-) extending rearwardly from the sleeve 36. The spindle 18 about which the carrier pivots is disposed laterally and rearwardlyy of the transfer rolls, so that the supports may be moved freely without striking 'the` frame I0.

As a further precaution to prevent the supports from striking 'thev frame, a part thereofv is cut away at IIl to provide adequate space for the :i support B in its extreme position when the support A is positioned below the applying roll. To insure the proper application of cement to the work, the applying roll I2 should be parallel to the work supports. It is for this reason that the' applying roll I2 is set at an. angle to the transfer 70 roll 22, that is, with its axis intersecting the axis about. which. the supports A and B swing. The lowerportion of the carrier 15 is provided with vertical side walls 16'` having bosses 83;`

' formed in their forward portions and a bottom 75 wall 83 having a lateral extension 14 integral therewith, the purpose of which will appear hereinafter.

The work support A is adapted to hold the toe piece T of a moccasin in contact with the applying roll, as illustrated in Fig. 5, and since it is substantially identical with that shown and described in my prior application Serial No. 309,227, it will be described only `briefly herein. Essentially, the support comprises a beveled feed roll 48, over which the beveled portion of the toe piece is held by the applying roll with its beveled surface in contact with the applying roll, and a guide roll 46 disposed opposite the lateral face of the roll. 48 'for holding the body of the toe piece T against the lateral or end face of the feed roll 40 at substantially right angles to the beveled portion. The feed roll 48 is driven, as will appear hereinafter, and for this purpose is fixed to a shaft 42- which is journaled in a sleeve .44, the latter being pivotally'supported on'horizontal studs 84 ina plane below the plane of the applying roll I2 on the carrier 16 for depression by the operator. To this end, yoke-shapedarms 88 are provided at the inner end of the sleeve 44 and are bored at for the reception of the studs 84 which are fixed in the bosses 83 (Figs. 1 and 4) by setscrews 86 (Fig. 3)'. The. guide roll 46 is carried byan arm. 50 which is pivotally held ina bifurcated head 52 formed at the end of a spindle 54, the latter being .xed tothe sleeve 44 by a clamp 56 and arm 58. The arm 58 is urged by a. spring 48 inwardly yieldingly to press the guide roll 46 against the work to hold it in engagement with the lateral face of the feed roll. 48. In my prior application, an abutment comprising a rotatable sleeve is employed to direct the work so that it passes between the feed roll and the applyingroll on a line substantially tangential to the rolls at their bite. In the present machinev a finger YIll is used as the abutment.

The feed roll 40 is driven from the constantly rotating shaft 34, as will'now appear. Since the position of the shaft. 42..is not fixed with respect to the shaft 34 of .the applying roll, that. is,.it movesl With the carrier 16 about the axis `of the spindle 18 as a. center, means must be provided to establish a driving .connection betweenv the rotating shaft 34. andthe shaft 42'regardlessof the position of the shaft 42. This is accomplished by fixing` bevel gears I I4 and .I I6 .to the shafts. 42 and 34',.respectively,. and mounting an idle gear I I8 for free rotation on the spindle 18, the idler beingprovid'edwith double .faces which mesh .with the gears II4'and IIB, thereby establishing a driving connection between the same,

As in my prior application, it is desirable to urge the feedroll- 48 yieldably toward the applyingroll I2 soas. to grip the beveled edge of the toe piece between the rolls. This is provided for inthe present machine by a compression spring 96 which is disposed between the extension 14 and a bifurc'ated'abutment 92 (Figs. l and 3) extending laterally from the sleeve 44. The spring is held in place by an eye bolt 90 which passes axially therethrough and hangs from a pin 9I`. The opposite end of the eye bolt 98 extends through an aperture 93 formed in the extension 14, and a thumb nut 94 is threaded onto the free end thereof. By turning the thumb-nut 94 `longitudinally of .thefeye ,bolt 98, the sleeve 44 may be tiltedabout its pivot point to raise or lower the feed roll 40 with respect to the applying roll, in accordance with the thickness of the work. 'Ihe spring 96 yieldably holds the arm 44 in its adjusted position and permits the roll to yield under irregularities in the thickness of the work. A nut 98 is mounted on the eye bolt 90 and provides means for varying the compression of the spring 96.

The work support B (Fig. l) is adapted to hold the vamp or bottom in position for the application of cement thereto by the applying roll I2. As illustrated in Fig. 2, the vamp in this method of moccasin manufacture is lasted prior to the application of cement to its beveled edge. The last, generally indicated by the letter L, is disclosed in application Serial No. 240,546 and consists of a hollow body 6| over which the vamp is stretched and held in place by a trimming guard which consists of a band 63 which extends about the forepart of the last, a bottom engaging member 63', and side members 65 rigidly connecting the band and bottom engaging member. A bail 65 pivotally fixed to the trimming guard provides means for locking the same rigidly on the last body 6|. In accordance with the practice disclosed in application Serial No. 240,546, the edge of the vamp is trimmed so as to leave a bevel 62, and it is to this beveled edge of the vamp that the cement is to be applied. In order to present the beveled edge 62 of the vamp to the surface of the applying roll I2, it is necessary to tip the last up at an angle, as illustrated in Fig. 2. To assist in holding the last steady during rotation thereof, the support B is provided with a roll S4 having a beveled surface 68 adapted to engage the inclined surface of the trimming guard 63. The roll 64 is supported below the applying roll I2 by an arm 'I2 which extends laterally and upwardly from the extension 'I4 of the carrier 16 to bring the roll 64 into substantially the same horizontal plane as the feed roll 40 of the support A. A slide 'I0 is adjustably fixed to the free end of the arm 'I2 by a screw-and-slot connection 1|, 13. The beveled roll 64 is rotatably fastened to the slide I by a screw G6 and, consequently, moves therewith to permit adjustment of the roll 64 widthwise of the applying roll.

The carrier 'I6 upon which the supports A and B are mounted, as described above, is swingable about the axis of the vertical spindle T8 to bring one or the other of the supports beneath the applying roll. To facilitate movement of the carrier, a thumb piece I I2 is formed on the under side of the extension 'I4 which may be grasped to swing the carrier from side to side.

The work supports A and B, as indicated, are xed in their relation to one another and swing about a common axis so that when one support is swung into position, the other support is simultaneously swung out of position. When one of the work supports has been moved into operating position beneath the applying roll, it is desirable to lock the carrier 16 so that it will not move out of position during the cementing operation. To this end, a collar |08 (Figs. 3 and 4) is fastened to the socket 'I9 by screws ||0, the collar having two depressions |04 and IE6 therein adapted to receive the end of a spring-pressed pin |00 which is slidably mounted in a recess |02 formed in the carrier 16.r As shown in full lines in Fig. 3, when the pin |00 occupies the depression |04, the support B is held in operating position, and when the pin |00 occupies the depression |06, the support A is in operating position.

In operation, the proper work support A'Ior B isswung into position beneath the applying roll, in accordance with the character of the work being cemented, by grasping the thumb piece I I2 and swinging the carrier I6 about the spindle I8 either to the right or to the left. If cement Vis to be applied to toe pieces, the support 'AV is swung into position and the toe pieces are fed to the rolls I2 and 40, as disclosed in my prior application Serial No. 309,227, by introducing the beginning of a straight run of the toe piece T to the rolls. The rotation of the rolls automatically traverses the toe piece without manipulation by the operator. When cement is to be applied to the vamp, the support A is swung to the left and the support B is locked in position beneath the applying roll. The operator then takes the lasted vamp in hand and tips it at an angle, as shown in Fig. 2. pressing the trimming guard 63 against the beveled surface of the supporting roll 64 with the beveled edge of the vamp against the roll I2. Thereafter he turns the last from side to side, thereby applying a coating of cement to the entire length of the opening at the top of the vamp.

Having described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. A machine for applying cement to parts of shoes comprising a cement applying roll, a swingable carrier adjacent to the applying roll, plural Work supporting rolls adapted to support shoe parts of different shape mounted on said carrier, and means for rotating one of said work supporting rolls, said swingable carrier being mounted for movement relative to the applying roll to bring one or the other of said work supporting rolls into co-operating position with the applying roll.

2. A machine for applying cement comprising a cement applying roll, a swingably mounted carrier, and plural work supporting rolls rotatably mounted on said swingable carrier, .said work supports being adapted to support shoe parts of dierent shape and being spaced apart so as not to interfere with each other, said swingable carrier being movable to bring one of said work supporting rolls in co-operating position with the applying roll, one of said work supporting rolls being adjustably mounted on said oarrier whereby it may be moved relative to the applying roll.

3. A machine for applying cement comprising a cement applying roll, a carrier, and a plurality of work supporting rolls rotatably mounted on said carrier, said carrier being movable to position one of said work supporting rolls in co-operating relation with the applying roll, one of said work supporting rolls being adjustably mounted on said carrier whereby it may be moved widthwise of the surface of the applying roll.

4. A machine for applying cement comprising a cement applying roll, a carrier, and a plurality of work supporting rolls rotatably mounted on said carrier, said carrier being movable to position one of said work supporting rolls in cooperating relation with the applying roll, said work supporting rolls being adjustably mounted on said carrier whereby one of the rolls may be moved to and from the peripheral surface of the applying roll and the other of the vrolls may be moved widthwise of said surface of the applying' roll.

5. A machine for applying cement comprising a cement applying roll, a carrier, and plural Work supporting rolls mounted on said carrier, said carrier being movable to bring one of said Work supporting rolls into co-operating relation with the applying roll and simultaneously to move the other out of position, one of said work supporting rolls being pivotally mounted on said carrier, and means for adjusting the position of said pivotally mounted Work supporting roll relative to the applying roll.

6. A machine for applying cement comprising a frame, a cement applying roll mounted on said frame, an arm fixed to the frame having a socket at its free end, a spind1e fixed in the socket, a carrier mounted on said spindle, plural Work supports mounted on said carrier, said carrier being movable to position one of said work supports in co-operating relation to the applying roll, and means for locking one of said Work supports in co-operating relation to the applying roll, said locking means comprising a collar xed to said socket, said collar having plural depressions therein, and a spring-pressed plunger mounted on said carrier, said plunger being cooperable With the depressions in said collar to lock the carrier at a predetermined position on said spindle.

7. A machine for applying cement comprising means for applying cement, plural work supports alternatively co-operable with the applying means, and common means for supporting said Work supports for movement about a vertical axis and for supporting one of said work supports for movement about a horizontal axis.

8. A machine for applying cement comprising means for applying cement, plural work supports alternatively co-operable with the applying means, means supporting said Work supports for movement about a vertical axis and for supporting one of said Work supports for movement about a horizontal axis, and means for adjusting the position of the latter Work support about the horizontal axis.

9. A machine for applying cement comprising a frame, driven means mounted onysaid frame, cement applying means, a carrier mountedon said frame, plural work supporting rolls, one of which is driven, mounted on said carrier, said carrier being movable alternatively to position one or the other of said work supports in co-operating relation with the applying means, and means for maintaining an uninterrupted driving connection between the driven means and the driven work support irrespective of its position.

10. A machine for applying cement comprising a rotatable cement applying roll, a carrier, plural rotatable Work supports mounted on said carrier, said carrier being movable alternatively to position one or the other of said supports in cooperative relation to the applying roll, a shaft on said carrier for rotating one of said work supports, and means for connecting said-shaft for rotation with the rotatable applying roll.

1l. A machine for applyingcement comprising rotatable cement applying means, plural Work supports spaced laterally from each other, one of which is rotatable, means supporting said work supports for movement, movement of said supporting means to bring one of said Work supports into co-operating relation with'the applying means simultaneously moving the other means out of co-operating relation therewith, means for rotating the applying means, and means connecting said rotatable supporting means to said applying means for rotation therewith.

12.- A machine for applying cement comprising rotatable cement applying means, plural Work supports, one of which is rotatable, means for supporting said Work supports for movement into and out of co-operating relation With the applying means, a shaft for rotating said rotatable Work support, a shaft for rotating the applying means, gears fixed to said shafts, an idler gear connecting said gears, and means for driving one of said shafts.

FRED ASHWORTH. 

